Topic 1, Volume A
You are configuring your Alcatel-Lucent 7750SR Service Router from the Command Line
Interface (CLI), and after entering a lengthy command, wish to return directly to the ROOT context.
Which control command allows you to do this quickly?
A.
Ctrl-z
B.
Ctrl-c
C.
Esc
D.
Shift-Page Down
Ctrl-z
Which of the following best describes a repeater?
A.
A passive device simply used to connect two or more cables. Does not generate or amplify any
signals.
B.
device that receives and retransmits a signal out its ports, but does not do any Layer 2 analysis
of the data.
C.
A devicethat receives a signal and based on the Layer 2 destination address, makes a decision on
which ports the signal should be retransmitted.
D.
A device that receives a signal and based on the Layer 3 destination address, makes a decision
on which ports the signal should be retransmitted.
device that receives and retransmits a signal out its ports, but does not do any Layer 2 analysis
of the data.
Which of the following is a feature of Layer 3?
A.
Provides an universal addressing scheme
B.
Ensures data is delivered across the Layer 2 network.
C.
Provides reliable data transfers.
D.
Provides a physical interface to the network.
Provides an universal addressing scheme
The 201.148.26.0/24 network is subnetted using a /26 mask. How many subnets and host
addresses will you obtain with this mask?
A.
4 subnets, 64 hosts
B.
64 subnets, 4 hosts
C.
4 subnets, 62 hosts
D.
64 subnets, 2 hosts
E.
6 subnets, 30 hosts
4 subnets, 62 hosts
What kind of information can a Dynamic Host Configuration Protocol (DHCP) client receive?
A.
Details of the configuration settings of each router on the network.
B.
A list of other DHCP clients.
C.
IP addresses and their lease times.
D.
Server time information
IP addresses and their lease times.
Choose two true statements that characterize Link State Routing
A.
Routers send a copy of their routing table to their neighbors periodically.
B.
Routers flood link information throughout the entire area.
C.
Network converges quickly (within several seconds) after a topology change.
D.
Routers do not have precise knowledge of the entire network topology.
Routers flood link information throughout the entire area.
Network converges quickly (within several seconds) after a topology change.
Which statement accurately explains the purpose of the TCP protocol and what it provides?
A.
The primary purpose of TCP is to provide reliable communications between application services.
B.
The primary purpose of TCP is to provide unreliable communications between application services
C.
The primary purpose of TCP is to provide IP routing between application services.
D.
The primary purpose of TCP is to define the correct format for the application layer such as JPEG
or HTML.
The primary purpose of TCP is to provide reliable communications between application services.
Which of the following is the best description of well known ports?
A.
Well known ports apply to routers only and areused for communication and control traffic. Well
known port numbers are assigned by IANA and can have any value.
B.
Well known ports are used by TCP and UDP. Well known port numbers range from 1024 to 65535
and are assigned by IANA.
C.
Well known port numbers are used by both TCP and UDP. Well known port numbers range from 1
to 1023 and are assigned by IANA.
D.
Well known ports numbers are used by TCP only. Well known port numbers are assigned by IANA
and can have any value.
Well known port numbers are used by both TCP and UDP. Well known port numbers range from 1
to 1023 and are assigned by IANA.
Which organization first considered cross-platform networking support to be a necessity?
A.
IBM.
B.
US Military.
C.
Alcatel-Lucent.
D.
NASA.
E.
Bell Labs
US Military.
Which of the following statements best describes ARPANET?
A.
ARPANET was an early packet switched network initially connecting 4 sites (Stanford, UC Santa
Barbara, UCLA, and U of Utah).
B.
The mission of ARPANET was to connect packet switched networks and other diverse networks,
making an international network of networks.
C.
ARPANET connected sites spread around the Hawaiian Islands to a central time-sharing
computer on the University of Hawaii campus.
D.
ARPANET was based on the use of TCP/IP to interconnect diverse systems.
ARPANET was an early packet switched network initially connecting 4 sites (Stanford, UC Santa
Barbara, UCLA, and U of Utah).
Kahn solved the problem of interconnecting different networks using different protocols by
pioneering a new protocol called TCP that was capable of:
A.
Secure transmission of information.
B.
Enforcing a constant packet size to avoid discards.
C.
Allowing remote logins.
D.
Providing host to host connectivity with global addressing
Providing host to host connectivity with global addressing
Which network was created to replace ARPANET?
A.
INWG
B.
ALOHANET
C.
IETF
D.
NSFNET
NSFNET
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